GM 4L80-E Case Checkball Locations
Valve Body Xpress
Attention on #2: Only used in Bentley and Aston Martin applications with transmission codes RCP, RDP, ZIP and ZLP. This checkball is not required for any build and only affects 2-1 downshift feel.
Related Units
Related Parts
Required
Recommended
4L80-E, 4L85-E
Remanufactured Valve Body GM027
’92–’96, Temperature Sensor in Wire Harness
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